/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package Control;

import Model.User;
import Model.UserDAO;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Nguyen Hung
 */
public class LoginServlet extends HttpServlet {

  
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");

        HttpSession session = request.getSession();
        String loginName = request.getParameter("loginName");
        String pass = request.getParameter("pass");
        
        
        User user = new User();
        user.setUsername(loginName);
        user.setPassword(pass);

        
       
        boolean isExit = UserDAO.checkLogin(user);
        if (isExit == true) {
            session.setAttribute("user", user);          
           
            request.setAttribute("notice", "Đăng nhập thành công.");
        } else {

            request.setAttribute("notice", "Tài khoản hoặc mật khẩu không đúng!");
        }
        
        String currentUrl = (String)session.getAttribute("url");
        if(currentUrl == null)
            currentUrl = "/index.jsp";
        if(currentUrl.contains("admin")){
            response.sendRedirect(currentUrl);
        }
        RequestDispatcher dis = getServletContext().getRequestDispatcher(currentUrl);
        dis.forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
